26.86% is the change from 525 to 666
Calculation steps:
[( 666 - 525 ) ÷ 525] x 100 = 26.86%
Formula
Percentage change = [(666 - 525) / 525] x 100
Subtract the new number by the original number
666 - 525 = 141
141 ÷ 525 = 0.26857142857142857
0.26857142857142857 x 100 = 26.86%